Saint Paulo State is the state with the highest concentration of scientific and technological research institutions, the largest number of scientific and technological personnel, the strongest research capabilities, and the highest level of scientific research in the country.

Cork City is the industrial center of the region. Several pharmaceutical companies have invested heavily in Cork, including Pfizer, Johnson&Johnson, and Novartis from Switzerland. Cork is also Apple's European headquarters, with over 3,000 employees engaged in manufacturing, research and development, and customer support work.

The economy of The Hague is service-oriented, with 26% of jobs provided by the Dutch government or international organizations. The distribution of workplaces in the city is mainly composed of a large number of civil servants and diplomats working in the city.

Batam is the main organizational part of the eponymous city of Batam, with a cargo terminal and six passenger ferry terminals on the island. It has a daily container throughput of nearly 2700 and over 100 sailings between Singapore and Malaysia every day.

Delft is located in the province of South Holland in the Netherlands, between The Hague and Rotterdam, about 14 kilometers northwest of Rotterdam. Delft has an area of 24 square kilometers and a population of approximately 100,000 people.

Berlin is the capital and largest city of Germany, one of the sixteen federal states and one of only three major metropolitan states along with Hamburg and Bremen. It is also the political, economic, transportation, and cultural center of Germany.

Poznan is one of the largest industrial, transportation, cultural, educational, and scientific research centers in Poland.

​Christchurch is an important industrial and commercial center in New Zealand, as well as a hub for wool, beef, mutton, and agricultural products. It has factories in industries such as slaughter and freezing, wool spinning, sawmilling, electrical assembly, leather making, and clothing.

It is the central city of Gwangyang Bay and Jinzhou region. Gwangyang has a rare strong wind climate, and the water area maintains a constant temperature, providing unique conditions for port development.

Seattle has an area of approximately 220 square kilometers, with rivers, forests, and lakes widely distributed, and belongs to a temperate maritime climate. In 2023, the total population of the city is approximately 760,000, ranking among the top 20 urban populations in the United States.